# Long-Term Outcomes and Survival Rates of Patients Undergoing Biopsy Vs. Maximum Safe Resection for Thalamic Lesions: A Short Review on Current Evidence

## TL;DR

This review compares biopsy and surgery for thalamic tumors, focusing on survival and quality of life outcomes.

## Contribution

The paper synthesizes current evidence on treatment strategies for thalamic lesions, emphasizing individualized approaches.

## Key findings

- Maximal safe resection improves tumor control and survival compared to biopsy.
- Biopsy is preferred for high-risk patients or lesions in sensitive areas.
- Surgical resection can lead to neurological deficits affecting quality of life.

## Abstract

The thalamic lesion is one of the most challenging tumors with significant
mortality and morbidities. Current literature highlights the importance of
individualized treatment strategies tailored to the specific characteristics of
the lesion and the patient. In terms of efficacy, studies have demonstrated that
maximal safe resection (MSR) of thalamic lesions can lead to better tumor
control, prolonged progression-free survival, and improved overall survival
rates compared to biopsy alone. However, the feasibility of achieving MSR is
highly dependent on the location, size, and histology of the lesion, as well as
the patient’s functional status and overall health. Also, surgical interventions
in the thalamus carry inherent risks of neurological deficits, including
sensory, motor, and cognitive impairments, depending on the extent of surgical
resection and proximity to eloquent neural structures. On the other hand, biopsy
remains a valuable diagnostic tool for obtaining tissue samples and establishing
a definitive histological diagnosis in cases where MSR is not feasible or poses
a high risk of neurological complications. Indeed, biopsy is preferred in
patients with advanced age, significant comorbidities, or lesions located in
eloquent regions of the thalamus where aggressive surgical resection may result
in considerable morbidity. Quality of life (QoL) outcomes, including functional
status, symptom burden, and overall well-being, are important endpoints in
evaluating the impact of treatment approaches for thalamic lesions on patients’
daily activities. While MSR may offer potential long-term benefits in terms of
tumor control and survival outcomes, it may also be associated with a higher
risk of neurological deficits and functional impairments that can impact QoL
postoperatively. Conversely, biopsy may involve less invasive procedures and
shorter recovery times, resulting in better preserved functional status and
improved QoL in selected patient populations.